// compile: g++ -o main main.cc add.cc sub.cc -I ../include
#include <iostream>

#include "add.h"
#include "sub.h"
using namespace std;
int main() {
  int x, y;
  cin >> x >> y;
  cout << "x+y=" << Add(x, y) << endl;
  cout << "x-y=" << Sub(x, y) << endl;
  return 0;
}